xref: /freebsd/contrib/nvi/regex/regex.h (revision 0d66206fff44f864ea8a4b220c3a53b4caa959a0)
1 /*	$NetBSD: regex.h,v 1.1.1.2 2008/05/18 14:31:38 aymeric Exp $ */
2 
3 /*-
4  * Copyright (c) 1992 Henry Spencer.
5  * Copyright (c) 1992, 1993
6  *	The Regents of the University of California.  All rights reserved.
7  *
8  * This code is derived from software contributed to Berkeley by
9  * Henry Spencer of the University of Toronto.
10  *
11  * Redistribution and use in source and binary forms, with or without
12  * modification, are permitted provided that the following conditions
13  * are met:
14  * 1. Redistributions of source code must retain the above copyright
15  *    notice, this list of conditions and the following disclaimer.
16  * 2. Redistributions in binary form must reproduce the above copyright
17  *    notice, this list of conditions and the following disclaimer in the
18  *    documentation and/or other materials provided with the distribution.
19  * 3. Neither the name of the University nor the names of its contributors
20  *    may be used to endorse or promote products derived from this software
21  *    without specific prior written permission.
22  *
23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33  * SUCH DAMAGE.
34  *
35  *	@(#)regex.h	8.1 (Berkeley) 6/2/93
36  */
37 
38 #ifndef _REGEX_H_
39 #define	_REGEX_H_
40 
41 #ifdef __REGEX_PRIVATE
42 #include "config.h"
43 #include "../common/multibyte.h"
44 #endif
45 
46 /* types */
47 typedef off_t regoff_t;
48 
49 typedef struct {
50 	int re_magic;
51 	size_t re_nsub;		/* number of parenthesized subexpressions */
52 	const RCHAR_T *re_endp;	/* end pointer for REG_PEND */
53 	struct re_guts *re_g;	/* none of your business :-) */
54 } regex_t;
55 
56 typedef struct {
57 	regoff_t rm_so;		/* start of match */
58 	regoff_t rm_eo;		/* end of match */
59 } regmatch_t;
60 
61 /* regcomp() flags */
62 #define	REG_BASIC	0000
63 #define	REG_EXTENDED	0001
64 #define	REG_ICASE	0002
65 #define	REG_NOSUB	0004
66 #define	REG_NEWLINE	0010
67 #define	REG_NOSPEC	0020
68 #define	REG_PEND	0040
69 #define	REG_DUMP	0200
70 
71 /* regerror() flags */
72 #define	REG_NOMATCH	 1
73 #define	REG_BADPAT	 2
74 #define	REG_ECOLLATE	 3
75 #define	REG_ECTYPE	 4
76 #define	REG_EESCAPE	 5
77 #define	REG_ESUBREG	 6
78 #define	REG_EBRACK	 7
79 #define	REG_EPAREN	 8
80 #define	REG_EBRACE	 9
81 #define	REG_BADBR	10
82 #define	REG_ERANGE	11
83 #define	REG_ESPACE	12
84 #define	REG_BADRPT	13
85 #define	REG_EMPTY	14
86 #define	REG_ASSERT	15
87 #define	REG_INVARG	16
88 #define	REG_ATOI	255	/* convert name to number (!) */
89 #define	REG_ITOA	0400	/* convert number to name (!) */
90 
91 /* regexec() flags */
92 #define	REG_NOTBOL	00001
93 #define	REG_NOTEOL	00002
94 #define	REG_STARTEND	00004
95 #define	REG_TRACE	00400	/* tracing of execution */
96 #define	REG_LARGE	01000	/* force large representation */
97 #define	REG_BACKR	02000	/* force use of backref code */
98 
99 #ifdef USE_WIDECHAR
100 /*
101  * Avoid function name conflicts with the system regex functions.
102  * This is needed e.g. to build with AddressSanitizer.
103  */
104 #define regcomp nvi_regcomp
105 #define regerror nvi_regerror
106 #define regexec nvi_regexec
107 #define regfree nvi_regfree
108 #endif
109 int	regcomp(regex_t *, const RCHAR_T *, int);
110 size_t	regerror(int, const regex_t *, char *, size_t);
111 int	regexec(const regex_t *,
112 	    const RCHAR_T *, size_t, regmatch_t [], int);
113 void	regfree(regex_t *);
114 
115 #endif /* !_REGEX_H_ */
116